中文摘要：

综述了甲缩醛（DMM）的合成及其重整制氢研究的最新进展．甲醇选择氧化直接合成DMM的工艺路线短、成本低，是一种合成DMM的新技术，所使用的催化剂要求兼具酸性和redox性能，表面酸性和redox的匹配是获得甲醇高转化率和DMM高选择性的关键．已研究过的性能较好的催化剂体系有负载型Re氧化物、酸性修饰的V2O5／TiO2以及含有Mo和V等的多组分无定形复合氧化物等，在这些催化剂上，甲醇转化率可达60％，DMM选择性可达90％，副产物主要为甲酸甲酯，还有少量甲醛．与甲醇相比，DMM的毒性较低，容易在环境中降解，用DMM代替甲醇进行重整制氢是一种为燃料电池提供移动氢源的新方案．DMM重整制氢需要兼具酸性和金属的双功能复合催化剂，其中酸性组分应当具有很高的DMM水解活性．硝酸处理的高表面积酸性碳材料H-HSPRC（由酚醛树脂碳化得到）具有很高的DMM水解活性，其与传统的CuZnAl催化剂组成的复合催化剂CuZnAl-H-HSPRC具有很高的DMM重整制氢速率，513K时生成H2的速率可达7410ml／（g_h），高于相同温度下CuZnAl催化剂上甲醇重整的产H2速率．

英文摘要：

The recent progress of research on the synthesis and reforming of dimethoxymethane （DMM） is reviewed. Direct synthesis of DMM via partial oxidation of methanol might be a more effective way than the traditional condensation of formaldehyde and methanol catalyzed by an acid. Bi-functional catalysts with both acidic and redox properties are required for the selective oxidation of methanol to DMM, on which the redox sites play the function to oxidize methanol to formaldehyde which is then condensed with additional methanol on acidic sites to form DMM. The conversion of methanol could reach 60% with about 90% selectivity for DMM over special designed catalysts. Compared to methanol, DMM is much less toxic and more environmentally benign. Thus, DMM might be used as a fuel to be reformed to produce H2 for fuel cells. Bi-functional complex catalysts with acidic and Cu-ZnO/γ-Al2O3 components are required for the reforming of DMM with water to produce H2. Highly active acidic component is required to hydrolyze DMM to methanol and formaldehyde, which can then be reformed to produce H2 on the surface of copper in Cu-ZnO/γ-Al2O3. The complex catalyst consisting of a traditional Cu-ZnO/γ-Al2O3 and an acidic carbon material H-HSPRC prepared by carbonizing a phenolic resin was found to be highly active for the reforming of DMM with water to produce H2. The rate of H2 production was as high as 7400 ml/（g.h） for DMM reforming over the complex catalyst Cu-ZnO/γ-Al2O3-H-HSPRC at 513 K, significantly higher than that of methanol reforming over the traditional Cu-ZnO/γ-Al2O3 at the same temperature.